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5f578c884c
Normal SetValue() call would temporarily change the displayed value, but as soon as the text widget receives focus again, the original expression (not evaluated) is restored. To avoid this, the original expression is cleared in the associated NumericEvaluator object.
84 lines
2.6 KiB
C++
84 lines
2.6 KiB
C++
/*
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* This program source code file is part of KiCad, a free EDA CAD application.
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*
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* Copyright (C) 2017-2018 CERN
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* @author Maciej Suminski <maciej.suminski@cern.ch>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 3
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, you may find one here:
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* http://www.gnu.org/licenses/old-licenses/gpl-3.0.html
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* or you may search the http://www.gnu.org website for the version 3 license,
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* or you may write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <widgets/text_ctrl_eval.h>
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TEXT_CTRL_EVAL::TEXT_CTRL_EVAL( wxWindow* aParent, wxWindowID aId, const
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wxString& aValue, const wxPoint& aPos, const wxSize& aSize, long aStyle,
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const wxValidator& aValidator, const wxString& aName )
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: wxTextCtrl( aParent, aId, aValue, aPos, aSize, aStyle | wxTE_PROCESS_ENTER, aValidator, aName )
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{
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Connect( wxEVT_SET_FOCUS,
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wxFocusEventHandler( TEXT_CTRL_EVAL::onTextFocusGet ), NULL, this );
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Connect( wxEVT_KILL_FOCUS,
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wxFocusEventHandler( TEXT_CTRL_EVAL::onTextFocusLost ), NULL, this );
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Connect( wxEVT_TEXT_ENTER,
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wxCommandEventHandler( TEXT_CTRL_EVAL::onTextEnter ), NULL, this );
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}
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void TEXT_CTRL_EVAL::SetValue( const wxString& aValue )
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{
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wxTextCtrl::SetValue( aValue );
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m_eval.clear( this );
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}
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void TEXT_CTRL_EVAL::onTextFocusGet( wxFocusEvent& aEvent )
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{
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auto oldStr = m_eval.textInput( this );
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if( oldStr )
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wxTextCtrl::SetValue( wxString::FromUTF8( oldStr ) );
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aEvent.Skip();
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}
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void TEXT_CTRL_EVAL::onTextFocusLost( wxFocusEvent& aEvent )
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{
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evaluate();
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aEvent.Skip();
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}
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void TEXT_CTRL_EVAL::onTextEnter( wxCommandEvent& aEvent )
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{
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evaluate();
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// Accept the changes and close the parent dialog
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wxCommandEvent event( wxEVT_COMMAND_BUTTON_CLICKED, wxID_OK );
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wxPostEvent( GetParent(), event );
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}
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void TEXT_CTRL_EVAL::evaluate()
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{
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if( GetValue().IsEmpty() )
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wxTextCtrl::SetValue( "0" );
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if( m_eval.process( GetValue().mb_str(), this ) )
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wxTextCtrl::SetValue( wxString::FromUTF8( m_eval.result() ) );
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}
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